I agree with the girls on this one, don't be with him if there is nothing there. Maybe its the mixed feelings of pregnancy? Anyways if he changes he can play an active roll, your little boy would love for his daddy to be around. He may not know it now but he will. They say a women becomes a mom when she gets pregnant and a dad becomes a dad when he holds his baby. Maybe he is just confused now that it has happened, maybe he is scared?
Anyways congrats my birthday is in June

June 17th.
When's the date of your babys ?
Have you picked out a name ?